This example shows a grid of 18 randomly generated cartoon faces rendered as SVG. Each face combines a yellow background circle, two eyes, and a mouth, with their sizes and positions randomized within a defined range. The visualization uses React components to assemble the facial features, with the D3 `arc` API generating the mouth shape as a path. D3's `range` function creates the array of faces, and the entire composition is displayed in a bare minimum HTML page.